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Finding the Fourth Proportional to 118,507.59, 163,543.05 and 70,752.03

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Solution

The fourth proportional to 118,507.59, 163,543.05 and 70,752.03 is: 97,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,507.59 : 163,543.05 = 70,752.03 : x
  2. Step 2: Convert to fraction form
    118,507.59/163,543.05 = 70,752.03/x
  3. Step 3: Cross multiply
    118,507.59x = 163,543.05 × 70,752.03
  4. Step 4: Simplify right side
    118,507.59x = 11,571,002,779.89
  5. Step 5: Solve for x
    x = 11,571,002,779.89/118,507.59
  6. Step 6: Final answer
    x = 97,639.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.